Door-operating mechanism.



Patented lune ll, l90l. M. J. MBUONNELL.

DOOR OPERATING MECHANISM.

(Application filed Jan. 14, IQOL) 6N0 Model.)

' l ZELL, acitizen-of theUuitedStat s,

. others skilled in the art towhich had to the accompanying drawiug,, fol

Figural is an elevat on souri, have invented certain neuraiut use- .4; is a 'sectional view on lines 4, Rig. and Fig. 5, is ,an .elevationnl. view showing the ill BONNER-L," 0 .l

sienemicamouformin part 'of ara sm t No. 676,149, delteol June l'lfllfiol Ap licantfinant y'lnieoi. SerialNo.43,195.;diemedein Be it known that'I, MICHAEL J. ilcb oti l es'id ing' atthe city of. t. Louis, infthfe State of llisf u-l Improvement in Door-,0 pe r isms, of which the following and exact description, such sling Meghan to make and use. the sanie, relc,rcnce b part of this SDEClilCH'LlO Ii i which".-

511 View, partly in section, ofmy improved door-operating ncohanistn. 2 is a horizontal sectional view on line 2 2, Fig. 1. Fig. 3 is a vertical tional view, enlarged, on line3 3, Fig.

latch-operating mechanism asfapplicd to; a rotatable knob.) a r This;inventionrelatos to a new and "use? u improvement in door-operating, mechanism, the objectlbeing to provide means for "open; ingand closing a door through suitable lovers;- the operator. being lofc'at'edso me distance "f mm the door. I

With this ,o'bJect iii i'ewihe invcutio "icon-r sists iu' the construction, ari ang'emenuand w-nbination of the several part all as will hereinafter be describedandafter ward poin ted outin the claims,

In the drawings, A indicates a door, B the fioor, and C the joist, such parts being of usual construction. Mounted in a suitable bracket bolted to the joist under the floor is a shaft D, which projects up through the floor, preferably in axial aliucment with the hinge-pintle of the door. This shaft carries an arm E fixed to its upper end, which arm is located in a housing F, bolted or otherwise secured to the door A. Housing F at its inner end is preferably provided with lugs or ears f, which embrace the rod I) for the purpose of strengthening the parts. The lower end of rod D carries a lever G, the outer extremities of which are preferably perforated for the purpose of receiving links H. These links may be adjusted along the arms of lever Gr for the purpose of regulating the throw, as is well understood. Links ll are also exfro T; cams;J nni-or"on 1 a Debso P. ERATJ N e links 11, The perforations nr meme adj i1 stably in'ou'n ted therein 5 for wvel'l iu'ss.

g is ,CLHA Nisivr.

sha'f perfoi edan-d have-securedatomthem these arms of ileveiml' enable'thc nles L 21'; stock purposes. "Shaft-l-alsorhasundiluted upoi it a torsional" springv l"for=th.cpurpose of restoring tlie lever-I loitsmormal position,

"lloverbeingrotatably lli'OlllTiQ for tl-i ispurposc. l indicates an extension of lex e er end 'of' which i-s-providednvitliaa er es I of perforationsffor ari adjustabiy-mou ted 7h clip'lc, arranged outhe end of :an open cable K. This cable' K ex tends-back, building to any point from whichiitx' to operate the door-. z n

The in'anner' in which the doonisaon nod froni shaft -D is primarily-through theza'rm, ii, i which engagesthe housing Rand -tomes said door inwardly? However, as latchcslaretushally provided to hold the doorsin; losegd f position, it'i'snecessary to operate, h, latch previously to ope n'i ng the doorynnd: tozropoiilplish this the arm 1' has a slight lostqihot'on in'thehousingl ;which-lostinotioh .isititi zed in operating the latch"preparatory .to siting-: ing the door on its hinges. 8 Referring to Fig. 3, it will be seen that bell-crank lever L is mounted in a suitable housing Z, into which housing the outer end of arm E is received. The normal position of arm E is against the door, due to the tension of spring I; but when the rod- D is operated it moves outwardly in the housing F, operating the hell-crank lever L until said arm strikes the housing and is in readiness to apply its power in opening the door. Dur- 5 ing this time the operation oi lever L, through a link 1, actuates a lever M, said lever being pivoted at m and consisting of three arms or members, each of which is provided with a series of perforations for the purpose of adjustably connectingthe associate parts thereto. The link 11 is connected to one of these arms, as showninliig. 1, while to the other" of these arms are adjustably'connected links N, the other ends of said links being adjustably con'iiected to a lever O, pivoted at 0,.

By referring to Fig. 5 it will be seen that the lever M, the links N, and the lever 0', corresponding in all respects to the levers M and O and the links N, heretofore described,

are arranged to rotate a knob, lever 0 being provided with a clamping device for encircling the shank T of the knob, which shank.

also forms thefulcrum for the lever. From the above it will be seen that my imroved door-operating mechanism enables an perator to stand some distance within the building and open the door at will by the manipulation of a lever, the door-operatin g mechanism first withdrawing the bolt of the door andthen' swinging the door on its hinges. \Vh'en' the mechanism is released by-the operator, it is restored to its normal position by appropriate springs and the door is closed. The presence of my improved. mechanism on a door does not prevent the manual opening 3 5 and closingof the door by the proper manipulation ofthe thumb-latch or knelt 8y the arrangement of the parallel links tlte strain is equally distributed, and the liability of the parts becoming disarra'nged is thus lessened. I am aware that minor changes in the arrangemen construction, and combination 0t thesevera parts of my device can be madeandsubstituted for those herein shown and described without in the least departing from the nature and principle of my invention.

- Having thus described my invention, what I claim, and desire to secure-by LettersPat- .eut, v

I -1. Inad" or-operating mechanism, the comsfe :binatioh w th a power-shaft in axial alinement with the hinge-pintles of the door, an arm extending laterally from said po ersliaft, a housing F secured to the door an d'into which said arm extends;a latch mechanism which is operated by the initial movement of said arm, while'a continued movement of said arm .will cause the same to contact with said honeing F and client the'opening of the door, and

mechanism for operating said power-shaft; substantially as described. 1

2. In a door-operating mechanism, the combination with a power-shat tin axial alinefnent with the hinge-pintles of the'door, an arm extending laterally from said power shaft, a

housing F secured to the door and into which saidarm extends, a latch mechanism which is operated by the initial movement of said arm, while a continued movement of said arm will cause thesame to contact with said housing Fand effect the opening of the-door, a lever secured to the lower end of said power shaft, at torsional spring for holding said power-shaft and its carried parts in agiven position, and means for operating said powershaft; substantially as described.

V 3. In a door-operating mechanism, the combination with thedoor, ofa housing mounted thereon, a shaft carrying an arm projecting into said housing, a bell-crank lever having one memberin the'path of said arm, and a latch-operating mechanismactuated by said bell-crank lever prior to the engagement of the arm with said housing substantially as described.

4. Inadoor-operatingmechamsm,thecombination with the door, of a housingmounted' thereon, a shaft, an arm extending from said shaft into the housing, a bell-crank lever designed to be operated when the arm ismoving in said housing, a latch-operating mech 9o anism comprising levers M and 0 and links N, and a rod connecting the bell-crank lever with lever M; substantially as described.

In testimony whereof I hereunto aifix my signature, in the presence of two witnesses, this 11th day of J anuary, 1901.

' MICHAEL J. MCDONNELL.

Witnesses:

Wm. H. Scorn, GEORGE BAKEWELL; 

